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In page Baden bei Wien:

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The town boasted a theater, military hospital, and casino, all constructed in the late 1800s and early 1900s.[1][4] The City Theater (Stadttheater) was built in 1909 by Ferdinand Fellner. By the time of the First World War, Baden was Vienna's principal resort: 20 000 came each year, double the town's local population.[3] In addition to a modern "spa house" (Kurhaus), there were 15 separate bathing establishments and several parks.[3] During the war, Baden served as a temporary seat of the Austro-Hungarian high command. A new casino in 1934 made the town the premier resort throughout Austria.[citation needed] The Château Weilburg was destroyed during World War II. After World War II, Baden served as the headquarters of Soviet forces within occupied Austria until 1955.[citation needed]